At the end of the first year of operations, the total cost of the trading securities portfolio is $251000. Total fair value is $255800. The financial statements should show an addition to cost of the fair value adjustment and an unrealized gain of $4800 in the stockholders' equity section of the balance sheet. an unrealized gain of $4800 in Other revenues and gains," on the income statement O a realized gain of $4800 in the statement of comprehensive income. O a realized gain of $4800 in Other revenues and gains," on the income statement